The ornamental design for a laboratorydevice, substantially as shown and described.
FIG. 1 is a top plan view of a laboratory device showing my new design;
FIG. 2 is a left side view thereof;
FIG. 3 is a right side view thereof;
FIG. 4 is a front and left side perspective view thereof; and,
FIG. 5 is a front view thereof.
The broken lines in FIGS. 1 and 4 are included for the purpose of illustrating portions of the laboratory device that form no part of the claimed design.